As the use of electricity increased in manufacturing, mining, and other industries during the late 19th century and early 20th century, a number of accidents directly related to the ignition of flammable gases and vapors occurred. These lead authorities to implement classification systems in order …

Hazardous Locations and How Polar King Can Help. According to the National Fire Protection Association (NFPA), hazardous locations are defined as premises, buildings or parts thereof where fire or explosion hazards may exist due to the presence of flammable gases or vapors, flammable liquids, combustible …